OHH.. the aim of the game is to free the computer from the virus.
Story: You have entered the virtual world. Your mission is to terminate the virus, then leave the virtual world.
First of all, you need to kill enemies to collect bugs(coin-like items), then you can create antiviruses and keys in inventory. Altogether you need five keys to activate five different thing like this
, (activate by pressing down arrow).
Afterwards, the golden portal will be unlocked and you can use it to travel to a secret part of the map, where you can enter the BIG portal to finish the game.
Inventory navigations: up and down arrows to select, right arrow to create.